The SQL Developer Reports are provided as is, please review them before using them.
The reports run on the following version: Version 4.1.3.20
Some of the reports are modified to work on RAC (gv$ views) but others don't. If you need to make it work on RAC please modify them accordingly.
These are standard user reports and they can be imported in the standard way.
Please the read how to do it in the following links:
http://www.thatjeffsmith.com/archive/2015/03/how-to-share-reports/
For more information take a look at the wiki: https://github.com/delfino-nunez/SQL-Developer-Reports/wiki